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Impacts of fishing low-trophic level species on marine ecosystems
Smith, A.D.M.; Brown, C.J.; Bulman, C.M.; Fulton, E.A.; Johnson, P.; Kaplan, I.C.; Lozano-Montes, H.; Mackinson, S.; Marzloff, M.; Shannon, L.J.; Shin, Y.-J.; Tam, J. (2011). Impacts of fishing low-trophic level species on marine ecosystems. Science (Wash.) 333(6046): 1147-1150
In: Science (Washington). American Association for the Advancement of Science: New York, N.Y. ISSN 0036-8075, more
Peer reviewed article  

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Authors  Top 
  • Smith, A.D.M.
  • Brown, C.J.
  • Bulman, C.M.
  • Fulton, E.A.
  • Johnson, P.
  • Kaplan, I.C.
  • Lozano-Montes, H.
  • Mackinson, S.
  • Marzloff, M.
  • Shannon, L.J.
  • Shin, Y.-J.
  • Tam, J.

    Low–trophic level species account for more than 30% of global fisheries production and contribute substantially to global food security. We used a range of ecosystem models to explore the effects of fishing low–trophic level species on marine ecosystems, including marine mammals and seabirds, and on other commercially important species. In five well-studied ecosystems, we found that fishing these species at conventional maximum sustainable yield (MSY) levels can have large impacts on other parts of the ecosystem, particularly when they constitute a high proportion of the biomass in the ecosystem or are highly connected in the food web. Halving exploitation rates would result in much lower impacts on marine ecosystems while still achieving 80% of MSY.

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